Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

12 Questions

0 Views

中三級化學：原子結構

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Qual es le formula pro calcular le massa atomic relative de un elemento?

Suma del masses atomic de cada isotopo

Producto del masses atomic de cada isotopo per su abundancia

Media del masses atomic de cada isotopo

Suma del producto del masses atomic de cada isotopo per su abundancia (correct)

Que es le electron shell?

Le nivel de electrones que se trova a un certa energia

Le camino que los electrones sigue autour del nucleo

Le nivel de energia que los electrones occupa

Le grupo de electrones que se trova a un certa distantia del nucleo (correct)

Qual es le nombre de electrones que se pote trovar in le prime elektron shell?

2 (correct)

Como se llama le arrangement de electrones in un atomo?

Electron configuration Signup and view all the answers

Qual es le formula del electron configuration del atomo de oxygeno?

2, 6 Signup and view all the answers

Qual es le nombre de electrones que se trova in le secunde shell de un atomo de phosphoro?

5 Signup and view all the answers

Quanto es le numero de protones in un atomo de hydrogene?

1 Signup and view all the answers

Quale es le carga relative de un electron in un atomo?

-1 Signup and view all the answers

Qual es le numero de electrones in un atomo de carbon que ha un numero de massa 13?

6 Signup and view all the answers

Quale es le definition de un isotopo?

Un elemento con un numero de protones e neutron differente Signup and view all the answers

Qual es le unidad de massa atomic que scientistas usa?

unidade de massa atomic Signup and view all the answers

Como es calculato le massa relative de un elemento?

Mediante le media de la massa de tote le isotopos Signup and view all the answers